Add Class(es) to <html>

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

Stuff for <head>

About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

!

Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS Preprocessor

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

NormalizeResetNeither

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

If the stylesheet you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

JavaScript Preprocessor

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

HTML

<div id="page">
<div class="shadow-wrapper">
<div class="shadow">
<div>&nbsp;</div>
</div>
</div>
<div class="box-wrapper">
<div class="box">
<div class="front face"></div>
<div class="top">&nbsp;</div>
<div class="bottom">&nbsp;</div>
<div class="right face"></div>
<div class="back face"></div>
<div class="left face"></div>
</div><!-- end of .box -->
</div><!-- end of .box-wrapper -->
</div><!-- end of #page -->
<div class="overflow-container">
<div class="meta">(Text that won't fit in the cube flows here)</div>
<div class="overflow face">
</div>
</div>
<div class="instructions">
This demo is for my <a target="_blank" href="http://fonicmonkey.net/2013/09/23/combining-css-regions-with-transforms-and-animations/">blog post about CSS regions &amp; animation</a>.
<br/><br/>
NOTE: A browser with <a target="_blank" href="http://fonicmonkey.net/2013/09/09/css-regions-and-why-youll-be-using-them-before-you-know-it/#browsersupport">support for CSS Regions</a> is required.
</div>
<div class="content">
<strong>Hello and welcome</strong> to a CSS regions example.
<p>
I'm <a target="_blank" href="http://fonicmonkey.net/">Lee Mallabone</a> and I created this demo as a fun example of what happens when you combine CSS regions with transforms and animation.
<p>
Thanks to <a href="https://codepen.io/cliffpyles/pen/LHlqa">Cliff Pyles</a> and <a href="http://davidwalsh.name/css-cube">David Walsh</a> for the gorgeous CSS cube that's spinning here.
<p>
To see the region support really shine, have a look at the CSS section in the codepen editor and update the <tt>$cube-size</tt> variable. Try changing it to something like 280px and watch how the text flows differently (but appropriately) into the cube faces.
<p>
Change the font-size on the body style block too, and see how everything still flows across each cube face regardless of spacing, line breaks or paragraphs.
<p>
What now follows is some boilerplate text to allow the prose to flow downwards into the overflow div I've created below.
<p>
2.3. Named flows
A named flow is the ordered sequence of content associated with a flow with a given identifier. Contents in a named flow are ordered according to the document order.
Content is placed into a named flow with the ‘flow-into’ property. The content in a named flow is laid out in the region chain that is associated with this named flow using the ‘flow-from’ property.
Content from a named flow is broken up between regions according to the regions flow breaking rules.
A named flow is created when some content is moved into the flow with the given identifier or when at least one CSS Region requests content from that flow.
2.4
</div>